﻿//using System;
//using System.Collections.Generic;
//using System.Linq;
//using System.Text;
//using Oracle.DataAccess.Client;
//using System.Data;
//using System.Collections;

//    public class OracleHelper
//    {
//        #region private utility methods & constructors

//        //Since this class provides only static methods, make the default constructor private to prevent 
//        //instances from being created with "new OracleHelper()".
//        //private OracleHelper() { }

//        /// <summary>
//        /// This method is used to attach array's of OracleParameters to an OracleCommand.
//        /// 
//        /// This method will assign a value of DbNull to any parameter with a direction of
//        /// InputOutput and a value of null.  
//        /// 
//        /// This behavior will prevent default values from being used, but
//        /// this will be the less common case than an intended pure output parameter (derived as InputOutput)
//        /// where the user provided no input value.
//        /// </summary>
//        /// <param name="command">The command to which the parameters will be added</param>
//        /// <param name="commandParameters">an array of OracleParameters tho be added to command</param>
//        private static void AttachParameters(OracleCommand command, OracleParameter[] commandParameters)
//        {
//            foreach (OracleParameter p in commandParameters)
//            {
//                //check for derived output value with no value assigned
//                if ((p.Direction == ParameterDirection.InputOutput) && (p.Value == null))
//                {
//                    p.Value = DBNull.Value;
//                }

//                command.Parameters.Add(p);
//            }
//        }

//        /// <summary>
//        /// This method assigns an array of values to an array of OracleParameters.
//        /// </summary>
//        /// <param name="commandParameters">array of OracleParameters to be assigned values</param>
//        /// <param name="parameterValues">array of objects holding the values to be assigned</param>
//        private static void AssignParameterValues(OracleParameter[] commandParameters, object[] parameterValues)
//        {
//            if ((commandParameters == null) || (parameterValues == null))
//            {
//                //do nothing if we get no data
//                return;
//            }

//            // we must have the same number of values as we pave parameters to put them in
//            if (commandParameters.Length != parameterValues.Length)
//            {
//                throw new ArgumentException("Parameter count does not match Parameter Value count.");
//            }

//            //iterate through the OracleParameters, assigning the values from the corresponding position in the 
//            //value array
//            for (int i = 0, j = commandParameters.Length; i < j; i++)
//            {
//                commandParameters[i].Value = parameterValues[i];
//            }
//        }

//        /// <summary>
//        /// This method opens (if necessary) and assigns a connection, transaction, command type and parameters 
//        /// to the provided command.
//        /// </summary>
//        /// <param name="command">the OracleCommand to be prepared</param>
//        /// <param name="connection">a valid OracleConnection, on which to execute this command</param>
//        /// <param name="transaction">a valid OracleTransaction, or 'null'</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param> 
//        /// <param name="commandParameters">an array of OracleParameters to be associated with the command or 'null' if no parameters are required</param>
//        private static void PrepareCommand(OracleCommand command, OracleConnection connection, OracleTransaction transaction, CommandType commandType, string commandText, OracleParameter[] commandParameters)
//        {
//            //if the provided connection is not open, we will open it
//            if (connection.State != ConnectionState.Open)
//            {
//                connection.Open();
//            }

//            //associate the connection with the command
//            command.Connection = connection;

//            //set the command text (stored procedure name or Oracle statement)
//            command.CommandText = commandText;

//            //if we were provided a transaction, assign it.
//            if (transaction != null)
//            {
//                command.Transaction = transaction;
//            }

//            //set the command type
//            command.CommandType = commandType;

//            //attach the command parameters if they are provided
//            if (commandParameters != null)
//            {
//                AttachParameters(command, commandParameters);
//            }

//            return;
//        }


//        #endregion private utility methods & constructors

//        #region ExecuteNonQuery

//        /// <summary>
//        /// Execute an OracleCommand (that returns no resultset and takes no parameters) against the database specified in 
//        /// the connection string. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(connString, CommandType.StoredProcedure, "PublishOrders");
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteNonQuery(connectionString, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns no resultset) against the database specified in the connection string 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(connString, CommandType.StoredProcedure, "PublishOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(string connectionString, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create & open an OracleConnection, and dispose of it after we are done.
//            using (OracleConnection cn = new OracleConnection(connectionString))
//            {
//                cn.Open();

//                //call the overload that takes a connection in place of the connection string
//                return ExecuteNonQuery(cn, commandType, commandText, commandParameters);
//            }
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns no resultset) against the database specified in 
//        /// the connection string using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(connString, "PublishOrders", 24, 36);
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(string connectionString, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populate the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteNonQuery(connectionString, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns no resultset and takes no parameters) against the provided OracleConnection. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(conn, CommandType.StoredProcedure, "PublishOrders");
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(OracleConnection connection, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteNonQuery(connection, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns no resultset) against the specified OracleConnection 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(conn, CommandType.StoredProcedure, "PublishOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(OracleConnection connection, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create a command and prepare it for execution
//            OracleCommand cmd = new OracleCommand();
//            PrepareCommand(cmd, connection, (OracleTransaction)null, commandType, commandText, commandParameters);

//            //finally, execute the command.
//            return cmd.ExecuteNonQuery();
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns no resultset) against the specified OracleConnection 
//        /// using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(conn, "PublishOrders", 24, 36);
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(OracleConnection connection, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populate the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connection.ConnectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteNonQuery(connection, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteNonQuery(connection, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns no resultset and takes no parameters) against the provided OracleTransaction. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "PublishOrders");
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(OracleTransaction transaction, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteNonQuery(transaction, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns no resultset) against the specified OracleTransaction
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(trans, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(OracleTransaction transaction, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create a command and prepare it for execution
//            OracleCommand cmd = new OracleCommand();
//            PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters);

//            //finally, execute the command.
//            return cmd.ExecuteNonQuery();
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns no resultset) against the specified 
//        /// OracleTransaction using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  int result = ExecuteNonQuery(conn, trans, "PublishOrders", 24, 36);
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an int representing the number of rows affected by the command</returns>
//        public static int ExecuteNonQuery(OracleTransaction transaction, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populet the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(transaction.Connection.ConnectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteNonQuery(transaction, CommandType.StoredProcedure, spName);
//            }
//        }

//        #endregion ExecuteNonQuery

//        #region ExecuteDataSet

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset and takes no parameters) against the database specified in 
//        /// the connection string. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(connString, CommandType.StoredProcedure, "GetOrders");
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(string connectionString, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteDataset(connectionString, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset) against the database specified in the connection string 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(connString, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param> 
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(string connectionString, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create & open an OracleConnection, and dispose of it after we are done.
//            using (OracleConnection cn = new OracleConnection(connectionString))
//            {
//                cn.Open();

//                //call the overload that takes a connection in place of the connection string
//                return ExecuteDataset(cn, commandType, commandText, commandParameters);
//            }
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a resultset) against the database specified in 
//        /// the conneciton string using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(connString, "GetOrders", 24, 36);
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(string connectionString, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populet the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteDataset(connectionString, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteDataset(connectionString, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset and takes no parameters) against the provided OracleConnection. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(conn, CommandType.StoredProcedure, "GetOrders");
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(OracleConnection connection, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteDataset(connection, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset) against the specified OracleConnection 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(conn, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param> 
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(OracleConnection connection, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create a command and prepare it for execution
//            OracleCommand cmd = new OracleCommand();
//            PrepareCommand(cmd, connection, (OracleTransaction)null, commandType, commandText, commandParameters);

//            //create the DataAdapter & DataSet
//            OracleDataAdapter da = new OracleDataAdapter(cmd);
//            DataSet ds = new DataSet();

//            //fill the DataSet using default values for DataTable names, etc.
//            da.Fill(ds);

//            //return the dataset
//            return ds;
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a resultset) against the specified OracleConnection 
//        /// using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(conn, "GetOrders", 24, 36);
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(OracleConnection connection, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populate the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connection.ConnectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteDataset(connection, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteDataset(connection, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset and takes no parameters) against the provided OracleTransaction. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(trans, CommandType.StoredProcedure, "GetOrders");
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param> 
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(OracleTransaction transaction, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteDataset(transaction, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset) against the specified OracleTransaction
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(trans, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param> 
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(OracleTransaction transaction, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create a command and prepare it for execution
//            OracleCommand cmd = new OracleCommand();
//            PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters);

//            //create the DataAdapter & DataSet
//            OracleDataAdapter da = new OracleDataAdapter(cmd);
//            DataSet ds = new DataSet();

//            //fill the DataSet using default values for DataTable names, etc.
//            da.Fill(ds);

//            //return the dataset
//            return ds;
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a resultset) against the specified 
//        /// OracleTransaction using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  DataSet ds = ExecuteDataset(trans, "GetOrders", 24, 36);
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>a dataset containing the resultset generated by the command</returns>
//        public static DataSet ExecuteDataset(OracleTransaction transaction, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populate the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(transaction.Connection.ConnectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteDataset(transaction, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteDataset(transaction, CommandType.StoredProcedure, spName);
//            }
//        }

//        #endregion ExecuteDataSet

//        #region ExecuteReader

//        /// <summary>
//        /// this enum is used to indicate weather the connection was provided by the caller, or created by OracleHelper, so that
//        /// we can set the appropriate CommandBehavior when calling ExecuteReader()
//        /// </summary>
//        private enum OracleConnectionOwnership
//        {
//            /// <summary>Connection is owned and managed by OracleHelper</summary>
//            Internal,
//            /// <summary>Connection is owned and managed by the caller</summary>
//            External
//        }


//        /// <summary>
//        /// Create and prepare an OracleCommand, and call ExecuteReader with the appropriate CommandBehavior.
//        /// </summary>
//        /// <remarks>
//        /// If we created and opened the connection, we want the connection to be closed when the DataReader is closed.
//        /// 
//        /// If the caller provided the connection, we want to leave it to them to manage.
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection, on which to execute this command</param>
//        /// <param name="transaction">a valid OracleTransaction, or 'null'</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param> 
//        /// <param name="commandParameters">an array of OracleParameters to be associated with the command or 'null' if no parameters are required</param>
//        /// <param name="connectionOwnership">indicates whether the connection parameter was provided by the caller, or created by OracleHelper</param>
//        /// <returns>OracleDataReader containing the results of the command</returns>
//        private static OracleDataReader ExecuteReader(OracleConnection connection, OracleTransaction transaction, CommandType commandType, string commandText, OracleParameter[] commandParameters, OracleConnectionOwnership connectionOwnership)
//        {
//            //create a command and prepare it for execution
//            OracleCommand cmd = new OracleCommand();
//            PrepareCommand(cmd, connection, transaction, commandType, commandText, commandParameters);

//            //create a reader
//            OracleDataReader dr;

//            // call ExecuteReader with the appropriate CommandBehavior
//            if (connectionOwnership == OracleConnectionOwnership.External)
//            {
//                dr = cmd.ExecuteReader();
//            }
//            else
//            {
//                dr = cmd.ExecuteReader((CommandBehavior)((int)CommandBehavior.CloseConnection));
//            }

//            return (OracleDataReader)dr;
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset and takes no parameters) against the database specified in 
//        /// the connection string. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(connString, CommandType.StoredProcedure, "GetOrders");
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(string connectionString, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteReader(connectionString, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset) against the database specified in the connection string 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(connString, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(string connectionString, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create & open an OraclebConnection
//            OracleConnection cn = new OracleConnection(connectionString);
//            cn.Open();

//            try
//            {
//                //call the private overload that takes an internally owned connection in place of the connection string
//                return ExecuteReader(cn, null, commandType, commandText, commandParameters, OracleConnectionOwnership.Internal);
//            }
//            catch
//            {
//                //if we fail to return the OracleDataReader, we need to close the connection ourselves
//                cn.Close();
//                throw;
//            }
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a resultset) against the database specified in 
//        /// the connection string using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(connString, "GetOrders", 24, 36);
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(string connectionString, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populate the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteReader(connectionString, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteReader(connectionString, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset and takes no parameters) against the provided OracleConnection. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(conn, CommandType.StoredProcedure, "GetOrders");
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(OracleConnection connection, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteReader(connection, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset) against the specified OracleConnection 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(conn, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(OracleConnection connection, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //pass through the call to the private overload using a null transaction value and an externally owned connection
//            return ExecuteReader(connection, (OracleTransaction)null, commandType, commandText, commandParameters, OracleConnectionOwnership.External);
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a resultset) against the specified OracleConnection 
//        /// using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(conn, "GetOrders", 24, 36);
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(OracleConnection connection, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connection.ConnectionString, spName);

//                AssignParameterValues(commandParameters, parameterValues);

//                return ExecuteReader(connection, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteReader(connection, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset and takes no parameters) against the provided OracleTransaction. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(trans, CommandType.StoredProcedure, "GetOrders");
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param>  
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(OracleTransaction transaction, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteReader(transaction, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a resultset) against the specified OracleTransaction
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///   OracleDataReader dr = ExecuteReader(trans, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or PL/SQL command</param> 
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(OracleTransaction transaction, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //pass through to private overload, indicating that the connection is owned by the caller
//            return ExecuteReader(transaction.Connection, transaction, commandType, commandText, commandParameters, OracleConnectionOwnership.External);
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a resultset) against the specified
//        /// OracleTransaction using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  OracleDataReader dr = ExecuteReader(trans, "GetOrders", 24, 36);
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an OracleDataReader containing the resultset generated by the command</returns>
//        public static OracleDataReader ExecuteReader(OracleTransaction transaction, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(transaction.Connection.ConnectionString, spName);

//                AssignParameterValues(commandParameters, parameterValues);

//                return ExecuteReader(transaction, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteReader(transaction, CommandType.StoredProcedure, spName);
//            }
//        }

//        #endregion ExecuteReader

//        #region ExecuteScalar

//        /// <summary>
//        /// Execute an OracleCommand (that returns a 1x1 resultset and takes no parameters) against the database specified in 
//        /// the connection string. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(connString, CommandType.StoredProcedure, "GetOrderCount");
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or T-Oracle command</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteScalar(connectionString, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a 1x1 resultset) against the database specified in the connection string 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(connString, CommandType.StoredProcedure, "GetOrderCount", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or T-Oracle command</param>
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(string connectionString, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create & open an OracleConnection, and dispose of it after we are done.
//            using (OracleConnection cn = new OracleConnection(connectionString))
//            {
//                cn.Open();

//                //call the overload that takes a connection in place of the connection string
//                return ExecuteScalar(cn, commandType, commandText, commandParameters);
//            }
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a 1x1 resultset) against the database specified in 
//        /// the conneciton string using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(connString, "GetOrderCount", 24, 36);
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(string connectionString, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populet the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteScalar(connectionString, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteScalar(connectionString, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a 1x1 resultset and takes no parameters) against the provided OracleConnection. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(conn, CommandType.StoredProcedure, "GetOrderCount");
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or T-Oracle command</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(OracleConnection connection, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteScalar(connection, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a 1x1 resultset) against the specified OracleConnection 
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(conn, CommandType.StoredProcedure, "GetOrderCount", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or T-OleDb command</param>
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(OracleConnection connection, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create a command and prepare it for execution
//            OracleCommand cmd = new OracleCommand();
//            PrepareCommand(cmd, connection, (OracleTransaction)null, commandType, commandText, commandParameters);

//            //execute the command & return the results
//            return cmd.ExecuteScalar();
//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a 1x1 resultset) against the specified OracleConnection 
//        /// using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(conn, "GetOrderCount", 24, 36);
//        /// </remarks>
//        /// <param name="connection">a valid OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(OracleConnection connection, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populet the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(connection.ConnectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteScalar(connection, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteScalar(connection, CommandType.StoredProcedure, spName);
//            }
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a 1x1 resultset and takes no parameters) against the provided OracleTransaction. 
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(trans, CommandType.StoredProcedure, "GetOrderCount");
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or T-OleDb command</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(OracleTransaction transaction, CommandType commandType, string commandText)
//        {
//            //pass through the call providing null for the set of OracleParameters
//            return ExecuteScalar(transaction, commandType, commandText, (OracleParameter[])null);
//        }

//        /// <summary>
//        /// Execute an OracleCommand (that returns a 1x1 resultset) against the specified OracleTransaction
//        /// using the provided parameters.
//        /// </summary>
//        /// <remarks>
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(trans, CommandType.StoredProcedure, "GetOrderCount", new OracleParameter("@prodid", 24));
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
//        /// <param name="commandText">the stored procedure name or T-OleDb command</param>
//        /// <param name="commandParameters">an array of OracleParameters used to execute the command</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(OracleTransaction transaction, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
//        {
//            //create a command and prepare it for execution
//            OracleCommand cmd = new OracleCommand();
//            PrepareCommand(cmd, transaction.Connection, transaction, commandType, commandText, commandParameters);

//            //execute the command & return the results
//            return cmd.ExecuteScalar();

//        }

//        /// <summary>
//        /// Execute a stored procedure via an OracleCommand (that returns a 1x1 resultset) against the specified
//        /// OracleTransaction using the provided parameter values.  This method will query the database to discover the parameters for the 
//        /// stored procedure (the first time each stored procedure is called), and assign the values based on parameter order.
//        /// </summary>
//        /// <remarks>
//        /// This method provides no access to output parameters or the stored procedure's return value parameter.
//        /// 
//        /// e.g.:  
//        ///  int orderCount = (int)ExecuteScalar(trans, "GetOrderCount", 24, 36);
//        /// </remarks>
//        /// <param name="transaction">a valid OracleTransaction</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="parameterValues">an array of objects to be assigned as the input values of the stored procedure</param>
//        /// <returns>an object containing the value in the 1x1 resultset generated by the command</returns>
//        public static object ExecuteScalar(OracleTransaction transaction, string spName, params object[] parameterValues)
//        {
//            //if we got parameter values, we need to figure out where they go
//            if ((parameterValues != null) && (parameterValues.Length > 0))
//            {
//                //pull the parameters for this stored procedure from the parameter cache (or discover them & populet the cache)
//                OracleParameter[] commandParameters = OracleHelperParameterCache.GetSpParameterSet(transaction.Connection.ConnectionString, spName);

//                //assign the provided values to these parameters based on parameter order
//                AssignParameterValues(commandParameters, parameterValues);

//                //call the overload that takes an array of OracleParameters
//                return ExecuteScalar(transaction, CommandType.StoredProcedure, spName, commandParameters);
//            }
//            //otherwise we can just call the SP without params
//            else
//            {
//                return ExecuteScalar(transaction, CommandType.StoredProcedure, spName);
//            }
//        }

//        #endregion ExecuteScalar


//        internal static int ExecuteNonQuery(string connectString, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }

//        internal static int ExecuteNonQuery(OracleTransaction oracleTransaction, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }

//        internal static DataSet ExecuteDataset(string connectString, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }

//        internal static DataSet ExecuteDataset(OracleTransaction oracleTransaction, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }

//        internal static IDataReader ExecuteReader(string connectString, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }

//        internal static IDataReader ExecuteReader(OracleTransaction oracleTransaction, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }

//        internal static object ExecuteScalar(string connectString, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }

//        internal static object ExecuteScalar(OracleTransaction oracleTransaction, CommandType commandType, string commandText, object[] commandParameters)
//        {
//            throw new NotImplementedException();
//        }
//    }

//    /// <summary>
//    /// OracleHelperParameterCache provides functions to leverage a static cache of procedure parameters, and the
//    /// ability to discover parameters for stored procedures at run-time.
//    /// </summary>
//    public sealed class OracleHelperParameterCache
//    {
//        #region private methods, variables, and constructors

//        //Since this class provides only static methods, make the default constructor private to prevent 
//        //instances from being created with "new OracleHelperParameterCache()".
//        private OracleHelperParameterCache() { }

//        private static Hashtable paramCache = Hashtable.Synchronized(new Hashtable());

//        /// <summary>
//        /// resolve at run-time the appropriate set of OracleParameters for a stored procedure
//        /// </summary>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="includeReturnValueParameter">whether or not to include ther return value parameter</param>
//        /// <returns></returns>
//        private static OracleParameter[] DiscoverSpParameterSet(string connectionString, string spName, bool includeReturnValueParameter)
//        {
//            using (OracleConnection cn = new OracleConnection(connectionString))
//            using (OracleCommand cmd = new OracleCommand(spName, cn))
//            {
//                cn.Open();
//                cmd.CommandType = CommandType.StoredProcedure;

//                OracleCommandBuilder.DeriveParameters(cmd);

//                if (!includeReturnValueParameter)
//                {
//                    if (ParameterDirection.ReturnValue == cmd.Parameters[0].Direction)
//                        cmd.Parameters.RemoveAt(0);
//                }

//                OracleParameter[] discoveredParameters = new OracleParameter[cmd.Parameters.Count];

//                cmd.Parameters.CopyTo(discoveredParameters, 0);

//                return discoveredParameters;
//            }
//        }

//        //deep copy of cached OracleParameter array
//        private static OracleParameter[] CloneParameters(OracleParameter[] originalParameters)
//        {
//            OracleParameter[] clonedParameters = new OracleParameter[originalParameters.Length];

//            for (int i = 0, j = originalParameters.Length; i < j; i++)
//            {
//                clonedParameters[i] = (OracleParameter)((ICloneable)originalParameters[i]).Clone();
//            }

//            return clonedParameters;
//        }

//        #endregion private methods, variables, and constructors

//        #region caching functions

//        /// <summary>
//        /// add parameter array to the cache
//        /// </summary>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandText">the stored procedure name or T-OleDb command</param>
//        /// <param name="commandParameters">an array of OracleParameters to be cached</param>
//        public static void CacheParameterSet(string connectionString, string commandText, params OracleParameter[] commandParameters)
//        {
//            string hashKey = connectionString + ":" + commandText;

//            paramCache[hashKey] = commandParameters;
//        }

//        /// <summary>
//        /// retrieve a parameter array from the cache
//        /// </summary>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="commandText">the stored procedure name or T-OleDb command</param>
//        /// <returns>an array of OracleParameters</returns>
//        public static OracleParameter[] GetCachedParameterSet(string connectionString, string commandText)
//        {
//            string hashKey = connectionString + ":" + commandText;

//            OracleParameter[] cachedParameters = (OracleParameter[])paramCache[hashKey];

//            if (cachedParameters == null)
//            {
//                return null;
//            }
//            else
//            {
//                return CloneParameters(cachedParameters);
//            }
//        }

//        #endregion caching functions

//        #region Parameter Discovery Functions

//        /// <summary>
//        /// Retrieves the set of OracleParameters appropriate for the stored procedure
//        /// </summary>
//        /// <remarks>
//        /// This method will query the database for this information, and then store it in a cache for future requests.
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <returns>an array of OracleParameters</returns>
//        public static OracleParameter[] GetSpParameterSet(string connectionString, string spName)
//        {
//            return GetSpParameterSet(connectionString, spName, false);
//        }

//        /// <summary>
//        /// Retrieves the set of OracleParameters appropriate for the stored procedure
//        /// </summary>
//        /// <remarks>
//        /// This method will query the database for this information, and then store it in a cache for future requests.
//        /// </remarks>
//        /// <param name="connectionString">a valid connection string for an OracleConnection</param>
//        /// <param name="spName">the name of the stored procedure</param>
//        /// <param name="includeReturnValueParameter">a bool value indicating whether the return value parameter should be included in the results</param>
//        /// <returns>an array of OracleParameters</returns>
//        public static OracleParameter[] GetSpParameterSet(string connectionString, string spName, bool includeReturnValueParameter)
//        {
//            string hashKey = connectionString + ":" + spName + (includeReturnValueParameter ? ":include ReturnValue Parameter" : "");

//            OracleParameter[] cachedParameters = null;

//            cachedParameters = (OracleParameter[])paramCache[hashKey];

//            if (cachedParameters == null)
//            {
//                cachedParameters = (OracleParameter[])(paramCache[hashKey] = DiscoverSpParameterSet(connectionString, spName, includeReturnValueParameter));
//            }

//            return CloneParameters(cachedParameters);
//        }

//        #endregion Parameter Discovery Functions

//    }
